Patent FR529233A successfully refreshed from Google Patents.
FR529233A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Optical device making it possible to obtain two superimposed stereoscopic photographs of the same object
Assignee: AUGUSTE-JULES TOUPILLIER
•
Filing: 1920-07-28
•
Granted: 1921-11-25
•
Expires: 1940-07-28
Abstract
No abstract record available.
Inventors
- 👤 Auguste-Jules Toupillier
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 17:32
CPC Classifications
G; G03; G03B; G03B35/00; G03B35/08; G03B35/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.